Piano-pedal.



PATENTED JULY 21, 1903.

H. R. MOORE. PIANO PEDAL.

APPLICATION FILED APR. 14. 1902.

no MODEL.

NVE/VTOR WITNESSES- adapted to receive the lower end of an action- No. 734,236. i

Patented July 21, 1903.

PATENT OFFICE. A,

HARTWELL R. MOORE, OF ORANFORD, NEW JERSEY;

'PIANVO- PEDA'L.

S?ECIFIGATION forming part of Letters Patent No. 734,236, dated July 21, 1903. Application filed April 14, 1902. seas lib-102,776. (1T0 model.)

To all whom it may concern.-

a citizen'of the United States,residin g at Oranford, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Piano-Pedals; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

The object of my invention is to provide an inexpensive and noiseless pedal of the class herein described.

My invention relates to improvements in pedal-actions for pianofortes; and it consists of a number of suitably-journaled rock-shafts having their ends bent in opposite directions, the inner ends or arms of which shafts are post, while the outer depending ends or arms thereof are provided with a foot-piece, which is accommodatingly uplifted a distance from the floor by means of a torsional spring, all of which I will more fully explain hereinafter. In the accompanying drawings, Figure 1 is a plan view of my improved pedal-action with the action-posts removed as it appears when applied to the base portion of an upright piano, one end of the said base being represented as broken away. Fig. 2 is a front ele vation of the same, but showing the actionposts in place. Fig. 3 is a transverse vertical section through the line or to, Fig. 2. Fig. 4 is a detail view of the rock-shaft, actionpost, and foot-piece.

Similarletters and figures of reference when they occur indicate corresponding parts in all the views.

Referring to the drawings, A and A are the rock-shafts, each of which has a small hole D drilled therethrough and which shafts are journaled in bearings or openings H H, formed in the standards B, B, and B. These standards B, B, and B are fastened to the bottom portion 0 of the case in the usual manner.

The shaft A comprises in its construction horizontal body portion 1, junctions 2 and 3,

'of the shaft A. as to be of unequal length and extend beyond the standards, so that the arm 4 will project inwardly and the arm 5 incline downwardly and outwardly, as shown, the shorter or inner arm 4 being provided with an opening 0 in its extremity to engage an action-post P and the longer or semidepending arm 5 having a right foot-piece F secured to the end thereof.

The shaft A is composed of body 1, junctions 2 and 3, and ends or arms 6 and 7. These arms 6 and 7 are bent and adjusted in their relation to each other similar to the arms 4 and 5, as above described; but the inher arm 6 is the longer of the two in this shaft A and is provided with the usual opening 0' 'in its extremity to accommodate an actionpost P, and to the end of its shorter or semidepending arm 7 is secured a left foot-piece F. S represents the torsional spring, which is preferably a section of suitable steel wire. One end S of this spring S is first bent and then fastened in the drill-hole D, formed in the body 1 of the desired rock-shaft, while the opposite end S thereof may be suitably arranged and then secured in a bore in, the standard 13 and held against displacement therein by means of a screw or equivalent device, as desired, whereby the foot-piece may be accommodatingly and noiselessly uplifted a distance from the floor, as is plain.

I do not wish to be understood as confining myself to the exact construction herein shown, as the device may be changed in a number of Ways without departing from the spirit and purpose of my invention.

I am aware that it is old to employ tilting bars having pedahfeet secured thereto and connected by a single-looped spring acting against both of said bars; but the said spring is not torsional in its action and does not economize in space for the other working parts of the piano, so I make no claim to such construction; but

What I do claim, and desire to secure by Letters Latent, is

1. A pedal-action for pianofortes comprising rock-shafts having their ends bent at right angles in opposite directions, actionposts engaged by the inner right-angular bends, pedal-feet secured to the outer bends and a torsional spring secured to each I'OCkf shaft and acting to lift the pedal-foot.

'2. In a pedal-action for pianofortes, the combination with the standard, of a rock-: shaft jOiUlIlfllGQ therein, and composed of a metal red bent at its ends to form right-an-f gular arms one jof which depends below the intermediate portion of the shaft, a pedal-T foot secnred to the depending arm, an action-j post engaged by the other arm and a tor' sional spring, one end of which is secured to the standard and its other end to the rockshaft tcflift the depending arm.

3. Ina pedal-action for pianofortes the combination with the standards, of a rock- HARTWELL RMoORE.

Witnesses:

SAMUEL MOORE, EDWARD USBEEK. 

